X+x/1.5+ (x/15+5) =75 help me

Question

X+x/1.5+ (x/15+5) =75 help me

Answer 1

Х + х/1,5 + х/15 + 5 = 75     Общ.знам. = 15
15х + 10х + х + 75 = 1125
26х = 1125 - 75
26х = 1050
х = 40 10/26 = 40 5/13
х = 40 5/13